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本文从“卷积”定义出发,根据网格理论,论证及阐明在卷积运算中实行《FASTFOURIER’S TRANSFORMATION》(简称 FFT)运算的理论依据,并着重介绍卷积滤波在数字信号处理中的应用。
Based on the definition of “convolution”, this dissertation proves and clarifies the theoretical basis of “FASTFOURIER’S TRANSFORMATION” (FFT) operation in convolution operation, and emphatically introduces the application of convolution filtering in digital signal processing.